Reinstalled OPNsense, stops working after 1 hour (aprox.) until reboot.

[jorglodita]

Hi! Have been using this firewall for years, yesterday I did a new install at home and errors appeared non stop, hope someone cal help me. I have no screenshots or log, please tell me if you need something as I have not found any log showing error at all.

I know my setup is a bit complex, OPNsense on a Proxmox VM. Have been using and installing it for more than 5 years, I already used to this config and think all the basic stuff is with an OK config.

Error: at the beginning all work perfectly, OPNsense VM is always at 1% CPU usage and all works wonderfully. When around an hour passes I start to have internet problems: cannot ping websites or ping with a lot of packet loss, cannot download, cannot navigate. At the same time OPNsense menus start to be more and more laggy, at the end I cannot enter the OPNsense interface any more (I still can ping to that machine). Proxmox shows a CPU usage of that VM at around 40-50%, don't know why as it usually stays at around 1% usage (I got a good server).

Weird errors I had on the past, somehow related:

1.- This is something that happened mostly on virtualized setups. On the past we had to ENABLE parent interfaces, even if not used, if not the machine became irresponsive after a few minutes (as is happening now). This was deprecated and no longer needed.

2.- This is something new and no much documented. People with Orange France ISP had to do some setup, they have to go to the "use van priority" (with option 6 in this case) or the connection drops after a lease. I have Orange ISP on another country (Spain) but had to enable that option too because my connection was dropping too on each lease.

I am having now a mix of both problems, so I don't really know what to do. For each test I format and start from 0 and then wait for an hour after I have reinstalled and updated everything, then I see the errors and need to start from scratch. A reboot "fixes" all but again in an hour the party starts again.
For each try I totally format and start from zero, to have a basic working install (nothing weird or complex). A basic VM, a basic install and no a million rules or even VLAN involved.

Someone can give me any hints?

Thanks a million!